[Electrophysiological examinations (ABR and DPOAE) of hearing organ in hemodialysed patients suffering from chronic renal failure].

Deterioration of function of hearing organ is one of the most important clinical problem in uremic patients with chronic renal failure. The present study aimed to assess the function of hearing organ using the brainstem auditory evoked responses (ABR), impedance audiometry and distortion product otoacoustic emission cochlear function (DPOAE) in 31 haemodialysed patients with chronic renal failure (16 females and 15 males, mean age 43.0 years). The control group consisted of 15 healthy subjects. The latency of the waves I, III, V and I-V interpeak in evoked response audiometry were significantly longer in the patients with CRF (chronic renal failure) compared to the control group. Measurement of DPOAE showed decrease of DPOAE level in patients suffering from CRF. A influence of single hemodialysis and treatment of hemodialysis by 6 months on ABR latencies and DPOAE values were not observed.